22221551122049 has 2 divisors, whose sum is σ = 22221551122050. Its totient is φ = 22221551122048.

The previous prime is 22221551122003. The next prime is 22221551122063. The reversal of 22221551122049 is 94022115512222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19853645682049 + 2367905440000 = 4455743^2 + 1538800^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221551122049 - 2⁸ = 22221551121793 is a prime.

It is not a weakly prime, because it can be changed into another prime (22211551122049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110775561024 + 11110775561025.

It is an arithmetic number, because the mean of its divisors is an integer number (11110775561025).

Almost surely, 2^{22221551122049} is an apocalyptic number.

It is an amenable number.

22221551122049 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221551122049 is an equidigital number, since it uses as much as digits as its factorization.

22221551122049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 22221551122049 in words is "twenty-two trillion, two hundred twenty-one billion, five hundred fifty-one million, one hundred twenty-two thousand, forty-nine".